Im hosting a foreign exchange student in august for a year?

All of those things seem so wonderful! Help her out with her English if she needs it, ask her to teach you lots of stuff in Spanish too! Mexican Spanish is different from Spain Spanish...so the Spanish you learned *might* be slightly different. But you will be ok. Having an exchange student is SO much fun! I hosted a student from Japan for two weeks and I went to Japan for two weeks! Ask about the Mexican holidays. It might be fun to celebrate and learn about the traditions. Also, celebrate and teach her about American Holidays. You and her will learn so much from each other. It will be a rewarding experience!